A convenient and efficient approach to polyfluorosalicylic acids and their tuberculostatic activity.

We have developed the practical method for polyfluorosalicylic acids synthesis via nucleophilic ortho-mono-substitution of fluorine atom with magnesium methoxide. We have managed to increase the yield of targeted polyfluorosalicylic acids from good to quantitative. We have studied the tuberculostatic activity of polyfluorosalicylic acids. It has been found that minimum inhibitory concentration (MIC) of compounds is from 0.7 to 6.5µg/mL depending on the structure.